# Edexcel Unit 4 Option C June 2002 Paper Question watch

1. I dont know if you guys have the paper buts its question 9.

How do you work out the tidal voulme of someones breathing pattern. Coz the picture does not have the breathing lines are not going straight but down. Something like the image in the attachment.
Attached Images

2. Please ignor the previous thread as it went all wrong. SORRRY!!!!!!!!!!!
3. for tidal volume, isn't it the difference between the peak and trough, so I would say calculate that for each of the three peaks, and average it?
4. Thank you so much its right coz i knew the answer but i just did not know how they got it. But anyway its fine you just have to find the difference from the peak and trough. You dont need to average it to find the tidal volume only when you want to find the anverage tidal volume as in that question.

PS: i rep 4 u
5. (Original post by b_shaikha4321)
Thank you so much its right coz i knew the answer but i just did not know how they got it. But anyway its fine you just have to find the difference from the peak and trough. You dont need to average it to find the tidal volume only when you want to find the anverage tidal volume as in that question.

PS: i rep 4 u
Yay! I'm so happy I managed to get something right in Biology (it's a rare occurrence)

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